Cortisol, Free, LC/MS/MS, 24-Hour Urine : 1016524

Test Code

UCOR24 or 1016524

Alias/See Also

Urinary Free Cortisol; Hydroxycortisone, Free; Compound F; Cortisol, Unconjugated

CPT Codes
82530

Instructions

24-hour urine. Refrigerate 24-hour specimen during collection.

Transport Container

Transport one 2 mL aliquot of urine from well-mixed 24 hour urine. (Min: 0.5 mL) Record total volume on transport container and test request form. (Specimens preserved with 6 N HCl, glacial acetic acid, or boric acid will be accepted but not preferred)

Transport Temperature

Refrigerated.

Specimen Stability

Ambient: 48 hours; Refrigerated: 7 days; Frozen: 5 months

Methodology
Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)

Setup Schedule

Monday - Friday

Report Available

2-6 days (From receipt at performing laboratory)

Reference Range

By report.

Clinical Significance

Urinary Free Cortisol is useful in the detection of patients with Cushing's syndrome for whom Free Cortisol concentrations are elevated.

Performing Laboratory
Quest Diagnostics

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.